Spirit Reverb is an audio plug-in featuring authentic spring reverb and powerful digital reverb effects. The 7 reverb types can be tuned to perfection with the customizable control panel. Spring reverbs can be adjusted for different numbers of springs and different spring parameters affecting length, tone, and texture. Tube preamp simulation gives an authentic vintage spring reverb tone as harmonics and nonlinearities were important factors in vintage spring reverb units.

Spirit Reverb can also do totally original effects, such as the Cosmic reverb type, which is generally set like an echo effect and causes a swelling frequency sweep trail. All effects have a parametric EQ that can be used either after the effect, or on the wet signal only. Stereo spread effects provide an even more big and spacious reverb which can be dialed to the desired width in "Mono to Stereo" mode.